by Layman E. Allen
For 2 players
Ages: 6 through adult
Details:
WFF includes the first two games from the complete WFF ?N PROOF series. Two engaging speed games allow players to learn to recognize WFF's (Well Formed Formulas) in symbolic logic. Both Shake-a-WFF and Count-a-WFF are fast-paced, exciting games dealing with a unique symbolic system. They are an appealing exercise for all ages.
